Pivaloyl chloride

Pivaloyl chloride
Names
	Preferred IUPAC name 2,2-Dimethylpropanoyl chloride
	Other names Trimethylacetyl chloride; Pivaloyl chloride; Pivalyl chloride; neopentanoylchloride
Identifiers
CAS Number	3282-30-2;
3D model (JSmol)	Interactive image;
Beilstein Reference	102382
ChEMBL	ChEMBL3183814;
ChemSpider	56272;
ECHA InfoCard	100.019.929
EC Number	221-921-6;
PubChem CID	62493;
UNII	JQ82J0O21T;
UN number	2438
CompTox Dashboard (EPA)	DTXSID4027529 ;
	InChI InChI=1S/C5H9ClO/c1-5(2,3)4(6)7/h1-3H3 Key: JVSFQJZRHXAUGT-UHFFFAOYSA-N;
	SMILES CC(C)(C)C(=O)Cl;
Properties
Chemical formula	C5H9ClO
Molar mass	120.58 g·mol−1
Density	0.985
Melting point	−57 °C (−71 °F; 216 K)
Boiling point	105.5 °C (221.9 °F; 378.6 K)
Refractive index (nD)	1.412
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H290, H302, H314, H330
Precautionary statements	P210, P233, P234, P240, P241, P242, P243, P260, P264, P270, P271, P280, P284, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P320, P321, P330, P363, P370+P378, P390, P403+P233, P403+P235, P404, P405, P501
Flash point	8 °C (46 °F; 281 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

2,2-Dimethylpropanoyl chloride is a branched-chain acyl chloride.^[1] It was first made by Aleksandr Butlerov in 1874 by reacting pivalic acid with phosphorus pentachloride.^[2]

Pivaloyl chloride is used as an input in the manufacture of some drugs, insecticides and herbicides.

References

^ "2,2-dimethylpropanoyl chloride". ChemSynthesis. Retrieved 1 July 2017.
^ Buttlerow, A. (1874). "Ueber die Trimethylessigsäure". Justus Liebig's Annalen der Chemie (in German). 173 (2): 355–375. doi:10.1002/jlac.18741730217.

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